[Openstack-stable-maint] Stable check of openstack/networking-bgpvpn for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/0157a8659fa841e3bcf28e6fa2056b... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ce1cb0725ca3459b971ddfb404d487f7 : FAILURE in 7m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a1dfd5bcb2e846e3a8993d1f8ed94e1b : SUCCESS in 6m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3001a72af02244a380e94ed2ba47525f : SUCCESS in 7m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8717f76ca9a54f2a926bf9ecba0c64c0 : SUCCESS in 9m 41s